Reactjs &引用；“内部服务器错误”；使用React路由器时手动刷新页面或键入URL时

我有一个问题，我已经看到了很多问题，但我找不到一个适合我的解决方案

只有当我推送到Heroku并从web加载它时，才会出现此问题。如果我转到我网站的根目录（即domain.com）加载页面。如果我四处点击，页面将在更改URL时使用正确的组件重新呈现。如果我刷新页面、键入URL或通过任何方式导航到该页面，但从主页上创建的一组链接除外，则会出现“内部服务器错误”

我知道这是一个路由器问题。我已尝试将devServer config historyapi fallback更改为true。我还尝试将historyApiFallback中的索引更改为应用程序的根目录

更新 当我进入Heroku上的日志时，在尝试导航到domain.com/activity时会出现此错误

2017-11-13T05:43:36.957344+00:00 app[web.1]: ReferenceError: path is not defined
2017-11-13T05:43:36.957347+00:00 app[web.1]:     at /app/server.js:7:23
2017-11-13T05:43:36.957348+00:00 app[web.1]:     at Layer.handle [as handle_request] (/app/node_modules/express/lib/router/layer.js:95:5)
2017-11-13T05:43:36.957349+00:00 app[web.1]:     at next (/app/node_modules/express/lib/router/route.js:137:13)
2017-11-13T05:43:36.957350+00:00 app[web.1]:     at Route.dispatch (/app/node_modules/express/lib/router/route.js:112:3)
2017-11-13T05:43:36.957351+00:00 app[web.1]:     at Layer.handle [as handle_request] (/app/node_modules/express/lib/router/layer.js:95:5)
2017-11-13T05:43:36.957352+00:00 app[web.1]:     at /app/node_modules/express/lib/router/index.js:281:22
2017-11-13T05:43:36.957353+00:00 app[web.1]:     at param (/app/node_modules/express/lib/router/index.js:354:14)
2017-11-13T05:43:36.957354+00:00 app[web.1]:     at param (/app/node_modules/express/lib/router/index.js:365:14)
2017-11-13T05:43:36.957355+00:00 app[web.1]:     at Function.process_params (/app/node_modules/express/lib/router/index.js:410:3)
2017-11-13T05:43:36.957355+00:00 app[web.1]:     at next (/app/node_modules/express/lib/router/index.js:275:10)

package.json

{
  "name": "app",
  "version": "1.0.0",
  "description": "App",
  "main": "index.js",
  "repository": "xxx@github.com",
  "scripts": {
    "start": "webpack-dev-server --inline --content-base . --history-api-fallback",
    "test": "mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test",
    "test:watch": "npm run test -- --watch",
    "prod": "NODE_ENV=production node server.js",
    "postinstall": "webpack -p"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "babel-core": "^6.2.1",
    "babel-loader": "^6.2.0",
    "babel-preset-es2015": "^6.1.18",
    "babel-preset-react": "^6.1.18",
    "chai": "^3.5.0",
    "chai-jquery": "^2.0.0",
    "jquery": "^2.2.1",
    "jsdom": "^8.1.0",
    "mocha": "^2.4.5",
    "react-addons-test-utils": "^0.14.7",
    "webpack": "^1.12.9",
    "webpack-dev-server": "^1.14.0"
  },
  "dependencies": {
    "axios": "^0.16.2",
    "babel-preset-stage-1": "^6.1.18",
    "lodash": "^3.10.1",
    "react": "^0.14.3",
    "react-autosuggest": "^9.3.2",
    "react-dom": "^0.14.3",
    "react-dropzone": "^4.2.1",
    "react-pdf": "^2.1.1",
    "react-redux": "4.3.0",
    "react-router": "^2.0.1",
    "react-router-dom": "^4.1.2",
    "react-select": "^1.0.0-rc.10",
    "recharts": "^1.0.0-beta.0",
    "redux": "^3.0.4",
    "redux-promise": "^0.5.3",
    "redux-thunk": "^2.2.0"
  }
}

server.js

var express = require('express');
var app = express();

app.use(express.static(__dirname + '/'));
app.get('*', function (request, response){
    response.sendFile(path.resolve(__dirname, 'index.html'))
});
app.listen(process.env.PORT || 8080);

webpack.config.js

module.exports = {
  entry: [
    './src/index.js'
  ],
  output: {
    path: __dirname,
    publicPath: '/',
    filename: 'bundle.js'
  },
  module: {
    loaders: [{
      exclude: /node_modules/,
      loader: 'babel',
      query: {
        presets: ['react', 'es2015', 'stage-1']
      }
    }]
  },
  resolve: {
    extensions: ['', '.js', '.jsx']
  },
  devServer: {
    historyApiFallback: true,
    contentBase: './'
  }
};

---

我想我解决了这个问题。在server.js中，我添加了

var path = require('path');

---

它开始正确路由。

我不太清楚，因为我也面临同样的问题，但有两种可能性，第一种是需要教后端正确路由，但它是在get*路由中完成的，第二种是heroku的问题，需要正确配置，但不知道：（你看了这个（）@Jay我以前没有看到过，但它没有解决问题。谢谢，谢谢。我不知道为什么在heroku上，在刷新主页旁的每个页面后，我得到“内部服务器错误”。我将const path添加到server.js的顶部，现在页面工作：））。问题是我忘记了在server.js中需要路径。问题是，在本地主机上运行良好：））